A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid ...

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0answers
25 views

Installing CyanogenMod changed phone number, no voice service

A few days ago, I installed cyanogenmod on my phone (From here), and I noticed that my phone couldn't get or send calls or texts. When I went to Settings>About>Status, the phone number and MIN showed ...
0
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1answer
54 views

Android lollipop Nexus5 mobile network exclamation mark

I am using nexus5 and I have never had problems using mobile data network. Some days ago I updated to 5.0.1 and problems started occuring, exclamation mark on mobile network icon, internet stopped ...
1
vote
1answer
49 views

Limit download rate in android? [duplicate]

I have an irritating friend of mine who has evil eye on my unlimited data plan. I have a few time asked him to do his own recharge but he tends not to. It's so irritating when he asks to tether. Can ...
0
votes
0answers
38 views

Recovering lost or stolen phone (security and feasability considerations)?

I am trying to understand a little bit about security in case my phone goes stolen. I have read that even if a phone is stolen and the SIM card is removed, it can still be possible to find your phone ...
0
votes
0answers
27 views

Not receiving network signals on samsung S3 T999?

Hi I just bought a Samsung S3 T-999. The problem is when I switch cellphone on, it connects to my network but just for a second. The moment that second's gone, I lose signals completely. So it's not ...
0
votes
0answers
15 views

SIP an Android: How does it work, how do I set it up, and how do I use it?

I am running Android 4.3 Jelly Bean on a Samsung Galaxy SIII. I've seen various posts on this site and on the Internet concerning SIP (Session Initiation Protocol). I've read a little bit about this ...
0
votes
0answers
41 views

Why are my call settings disabled (and which settings require operator support and which settings are normally included in service plans)?

As shown in the screenshot below, on my Samsung Galaxy SIII, when I go to Phone -> Call Settings, almost everything is disabled/grayed out. I have a SIM card inside my phone but have not topped up ...
10
votes
2answers
779 views

What does the “Aggressive Wi-Fi to Cellular handover” option in Developer Settings do?

In Android Lollipop 5.0, I noticed that "Developer Options" features a checkbox for "Aggressive Wi-Fi to Cellular handover" that is unchecked by default. Does anybody know what this setting does and ...
0
votes
0answers
37 views

Call log not displaying missed call when Network Data reenabled?

Sometimes Network Data is off. This could happen because the user intentionally disables it for some purpose (such as to decrease exposure to radiation), or because the user is on a plane and when ...
0
votes
0answers
19 views

How to check for supported wireless network data protocols?

Is it possible to check which of the following wireless network protocols are supported on an Android device by installing an application rather than by checking the device's specifications on the ...
-1
votes
1answer
34 views

Are MMS and Video calling over the provider's data network normally included in all-inclusive plans? [closed]

This is a somewhat broad question, I hope it won't be downvoted. I just wanted to ask, normally most modern topup/pay-as-you-go plans include unlimited phone calls, SMS (short-message-service) ...
0
votes
0answers
30 views

Why is there Infinite UDP broadcast traffic on tethering my android phone to computer?

I have a android samsung galaxy chat b5330. When I connect it to my Ubuntu Linux computer using usb tethering, an infinite sequence of similar UDP traffic is noted by Wireshark. The summary of the ...
0
votes
1answer
64 views

Some applications on my xperia z1 mobile won't be able to use internet over Mobile data where the other apps use it normally

Some applications on my xperia z1 mobile won't be able to use internet over Mobile data where the other apps use it normally. For example I can't use "Facebook" neither "Gmail " where I can use ...
0
votes
0answers
41 views

not registered on network and seems the imei is changed

I have an international version of galaxy s3 gt i9300 it had android 4.0.4 working fine when i bought it(second hand) then i upgraded it to 4.3. Since then it performs as a normal device would but can ...
0
votes
1answer
51 views

Use 2G instead of 3G on Samsung Galaxy SL I9003

I have a Samsung Galaxy SL I9003 mobile phone. I prefer to use 2G data connection instead of 3G but I am unable to turn off the 3G service in my phone. How can I turn off the 3G service and use 2G ...
1
vote
0answers
79 views

How can I change preferred network type through a script (or terminal command)

I'm currently attempting to create a workaround for a problem that is plaguing a ROM that I'm using. While my phone and ROM are capable of using LTE, and use it perfectly fine, the "preferred network ...
0
votes
1answer
57 views

How to Switch from 4G to 3G Galaxy Epic 4G SPH-D710?

I have received Galaxy S2 Epic 4G SPH-D710 unfortunately, 4G connection is not available where I live Just only 3G is available. When I turn on 4G hopefully It maybe switch to 3G automatically I get ...
0
votes
0answers
29 views

networking problem in huawei and phone often disconnect

my maxis network/bars often disconnect. anything wrong with the phone? I have tried to format but still the same.
0
votes
0answers
18 views

Force Galaxy Nexus to always login to one network

My (Polish, Play) carrier has signed internal agreements with probably all of top carriers in my country. This allows their SIM cards to login and us both mother network and all other networks ...
0
votes
1answer
73 views

Moto G 2014: Maximum upload speed?

According to specs the 2nd gen. Moto G has network support for: GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz) UMTS/HSPA+ up to 21 Mbps (850, 1700 (AWS), 1900 MHz) What's the actual maximum upload speed?
0
votes
0answers
89 views

Samsung Galaxy disconnected from network

My GTS5300 Samsung galaxy shows mobile network disconnected. How do I connect? What are the settings?
5
votes
3answers
265 views

how can android keep a TCP connection alive when changing network provider?

i'm curious about how android can keep a TCP connection alive while i'm switching from 3G ( mobile data ) to WiFi and viceversa. i'm asking this after i seen that i had an uninterrupted radio stream ...
0
votes
0answers
58 views

What could explain duplicate network operators being listed on Nexus 5 with Kitkat 4.4.4?

I have recently purchased a Nexus 5 phone using Videotron as my service provider (Quebec/Canada). Videotron has recently launched its LTE network, and ever since I have switched my SIM so that I could ...
2
votes
0answers
360 views

3g network connection Problem while using data

For last two months or so, the situation in my two years old international HTC One X is that the data is not connecting when it is on 3g network but it is working absolutely fine with 2g network. when ...
0
votes
3answers
64 views

Is it possible to use mobile minutes on a tablet

Is it possible to make phone calls from a tablet and use minutes instead of data? The ultimate goal is to have a tablet (e.g. nexus 7) and a Bluetooth headset and make phone calls without using up ...
0
votes
0answers
264 views

4G mobile data being used even when mobile data setting is off?

I have a Motorola Moto G, the 4G version, with the original ROM upgraded to the latest version (4.4.4 official from Motorola). The first thing I did when I got it was the same I have done when I got ...
0
votes
0answers
77 views

Limited mobile network connectivity with cyanogenmod 11 on HTC

I am facing network connectivity problems on a HTC Desire phone running cyanogenmod 11. While not connected to any WLAN I do receive mails via IMAP, can send mails via smtp but cannot connect to any ...
1
vote
1answer
188 views

How to stop an application using the mobile network

The kindle app on my android phone does not allow me to disable download over mobile (i.e. set it to only download over wifi). Is there any way I can do this externally? i.e. via another app or ...
0
votes
1answer
922 views

Difference between preferred network types

What's the difference between GSM, CDMA, WCDMA, EVDO, and LTE? How do they relate to the network icon labels? Which one is 3G? Which ones are E, H and H+?
0
votes
1answer
90 views

Cell standby use about 35-50% of total battery? [duplicate]

I have Micromax canvas 2.2 a114. I am in strong network zone and use 2g internet all time and time without network is 0%. So why it is consuming more battery. I also never in weak signal.??
0
votes
0answers
19 views

Is there a way to use the mobile network for data when connected to a WiFi network? [duplicate]

I have two devices that I routinely connect to my android phone through WiFi that do not offer internet: When in my car, an OBDLink MX WiFi ...
1
vote
0answers
48 views

Listen to Address Resolution Protocol (ARP) packet

Can an Android application generate or listen to ARP packet without root privilege ? Thank!
0
votes
1answer
863 views

Can't have G,E,3G,H+ in the network bar (thus no internet connection unless on wifi)

I have a new Samsung Galaxy Note 3 Neo, I have a question. Since I bought it 2 days ago, the internet connection is fine (with or without wifi) and it shows either G/E/3G/H+ symbol. But, I once get ...
0
votes
0answers
17 views

how to reset the PGW connection

My mobile phone on T-Mobile US seems to stay on a given PGW for days on end, having the same external IPv4 address. Very often, their PGWs get stuck after a while, or, they reboot all of them, and I ...
0
votes
1answer
344 views

Change network time (Fake)

In android you have a option to change your GPS location to a fake location. Is it possible to "fake" the network time, so my app thinks that the actual time the fake network time is? My phone is a ...
0
votes
0answers
46 views

Does unlocking the bootloader pose any carrier/network related risk?

I'm on Motorola's website, reading over risks and warnings related to unlocking the bootloader, two of which peaked my concern: You may lose some key functions like telephone, radio, and audio ...
0
votes
0answers
98 views

Sudden surge in network usage by unknown processes

Phone Details: Model: Nexus 4 (mako) Current ROM: Paranoid Android 4.3-BETA2 Xposed Present? Yes I flashed the new Paranoid Android 4.4- BETA1 today and noticed my phone downloading something. I ...
0
votes
0answers
872 views

Galaxy S3: I747UCUEMJB upgrade - baseband unknown

Last night I updated my Galaxy S3 from Cyanogenmod 9 to CM 11. One of the steps was to upgrade the bootloader. Everything went fine, and I'm now on CM 11-2014-06-02-d2lte. The problem: can't connect ...
0
votes
0answers
24 views

Apps are not running in the background in certain networks

When hangouts, Gmail or other apps that receive messages are not active, they are staying suspended. For instance, in hangouts I will only receive pending chat when opening the respective chat window. ...
0
votes
2answers
3k views

What is the difference between dual sim active and dual sim stand-by?

I am Using Sony Xperia Tipo Dual, which is Dual Sim Smartphone, but When i use internet from SIM 1 using Network Mode = GSM only or WCDMA/ GSM the another SIM's says NO NETWORK. When i deactivate my ...
1
vote
1answer
203 views

How to stop a notification saying “Registering to Network” every few seconds?

On Samsung Galaxy S2 HD LTE SHV-E120K Android v4.1.2 without a SIM I get "Registering to Network" notification repeatedly. How to stop? Thanks.
2
votes
3answers
2k views

My phone not registering to 2G (GSM only) network

I am using a Sony Xperia Neo L (MT25i). After updating the OS, my phone not registering to 2G (GSM only mode) network. It works perfectly with 3G (WCDMA only or WCDMA proffered mode) network. While ...
1
vote
1answer
41 views

Will disabling LTE extend my battery life even if I'm not using it?

I was just wondering, if disabling LTE will improve my battery life even if I'm never using it (there's no LTE in my country).
0
votes
0answers
55 views

mobile data reset ask not again prompt

it seems I have accidently ticked the ask not again checkbox when I have activated mobile dara. How can I reset this option so Android asks me again before activating mobile data?
0
votes
0answers
110 views

Device Performing slowly on poor network strength

Hii Everyone I am Using Samsung Galaxy Grand duos (GT-i9082) upgraded to jelly bean 4.2.2 and it's working good , but whenever SIM loses signal strength then device's performance is poor and it's ...
1
vote
1answer
103 views

How do I change DNS settings for 3G? [duplicate]

So I can use Twitter. It is okay when I use WiFi. But in 3G I cannot change DNS.
0
votes
1answer
55 views

Nexus 5 not getting net data even though its having hspa+ range

I tried rebooting my phone, reset to default on APN , safe mode but nothing seems to work.I still dont get internet on my phone.I'm from India and connection is docomo. Any help would be greatly ...
0
votes
0answers
24 views

Is there a way to track a phone with its IMEI? [duplicate]

Not Android specific. Is there a way to track a phone knowing its IMEI? That is, finding out if/when a phone with a certain IMEI connects to the network, and to get the SIM card number it is using ...
0
votes
1answer
2k views

No option for “mobile network” on Dell Venue 8

My friend has bought new "Dell Venue 8 3830" tablet with Android JellyBean 4.3. Now we want to connect a 3g dongle (D-Link) via a micro-usb cable which came with it. When i connect the dongle to the ...
0
votes
1answer
124 views

How can I speed up image transfer from my Android to the internet?

I have installed an app on my Android phone which can be used for uploading photos to the web. The problem is images can't be upload due to network weakness. Does anyone know a way in which I can ...